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Tricone Bit PDC Bit DTH Bit Mine & Core Bit Drag Bit Roller Cutter

9 7-8 5 wings matrix body PDC bit diamond drilling bit for underground water drilling - 副本

China TZ brand Lilin oil well drilling water well boring carbide tooth tricone bits

API 8 3-4 tungsten carbide insert tooth tricone button bits

API 7 7-8 200mm orientated well drilling water borehole drilling roller three cone bits

12 1-4 rock drilling liquids water borehole drilling equipments enviromental drilling tools

API 7-1 standard 215mm tricone button insert tooth roller bit for water borehole drilling

API 311mm IADC437 long teeth very soft formation drilling TZ tricone rock bit

3 7-8 IADC 637 inch borehole opening geotechnical exploration well water drilling tricone bits

146mm 5 3-4 inch carbide button teeth roller cone bits for hard rock drilling

245mm 241mm 5 blades 9 1-2 inch geothermal industrial well drilling PDC bits onshore drilling diamond bits

445mm 5-way diamond PDC drill bits for underground water drilling bits drilling parts equipments

311mm kingdream HA437 big teeth wide teeth tricone button bits for soft formation drilling

tungsten carbide inserts and diamond compact cutters PDC cone bit hybrid drill bits

216mm 8 1-2 inch 5 ways Fixed Cutters Oil Well Drilling PDC Bits

hard rock water well drilling DHD350 DTH hammer drill bit 152mm button tools

12 1-4 IADC635 coal and mineral hole blasting tungsten carbide conical tooth tricone button bits